OSI Detail Flashcards
What Layer of the OSI Model?
Data type occurs as bits. Cables, Wireless, Hubs, Access Points. No logic or decision-making.
Layer 1 - Physical
What Layer of the OSI Model?
Packing bits into frames and transmitting. MAC addresses, flow control. NICS, Bridges, Switches
Layer 2 - Data Link Layer
What Layer of the OSI Model?
Concerned with routing and forwarding logical addresses. Protocols and devices, multi-layer switches. IPv4, IPv6, ICMP.
Layer 3 -Network Layer
What Layer of the OSI Model?
Dividing line between the upper layers and the lower layers of the OSI model. TCP, UDP, WAN accelerators, load balancers and firewalls
Layer 4 - Transport Layer
What Layer of the OSI Model?
Manages sessions, setting up, maintaining, tearing down. Real-Time Transport Protocol. NetBIOS
Layer 5 - Session Layer
What Layer of the OSI Model?
Data formatting, ASCII, GIFs, JPEG, etc.. Encryption, HTML XML, VIDEO
Layer 6 - Presentation Layer
What Layer of the OSI Model?
Lower level apps, file and network transfer, pop3, smtp, http, dns, ssh, snmp
Layer 7 - Application Layer
OSI
Encapsulation
Moving down Layer 7 to 1
OSI
Decapsulation
Moving up from Layer 1 to 7